static void set_track(struct kmem_cache *s, void *object,
enum track_item alloc, unsigned long addr)
{
- struct track *p;
+ struct track *p = get_track(s, object, alloc);
- if (s->offset)
- p = object + s->offset + sizeof(void *);
- else
- p = object + s->inuse;
-
- p += alloc;
if (addr) {
p->addr = addr;
p->cpu = smp_processor_id();
c = get_cpu_slab(s, smp_processor_id());
debug_check_no_locks_freed(object, c->objsize);
if (!(s->flags & SLAB_DEBUG_OBJECTS))
- debug_check_no_obj_freed(object, s->objsize);
+ debug_check_no_obj_freed(object, c->objsize);
if (likely(page == c->page && c->node >= 0)) {
object[c->offset] = c->freelist;
c->freelist = object;
int order;
int min_objects;
int fraction;
+ int max_objects;
/*
* Attempt to find best configuration for a slab. This
min_objects = slub_min_objects;
if (!min_objects)
min_objects = 4 * (fls(nr_cpu_ids) + 1);
+ max_objects = (PAGE_SIZE << slub_max_order)/size;
+ min_objects = min(min_objects, max_objects);
+
while (min_objects > 1) {
fraction = 16;
while (fraction >= 4) {
return order;
fraction /= 2;
}
- min_objects /= 2;
+ min_objects --;
}
/*
* Kmalloc subsystem
*******************************************************************/
-struct kmem_cache kmalloc_caches[PAGE_SHIFT + 1] __cacheline_aligned;
+struct kmem_cache kmalloc_caches[SLUB_PAGE_SHIFT] __cacheline_aligned;
EXPORT_SYMBOL(kmalloc_caches);
static int __init setup_slub_min_order(char *str)
}
#ifdef CONFIG_ZONE_DMA
-static struct kmem_cache *kmalloc_caches_dma[PAGE_SHIFT + 1];
+static struct kmem_cache *kmalloc_caches_dma[SLUB_PAGE_SHIFT];
static void sysfs_add_func(struct work_struct *w)
{
{
struct kmem_cache *s;
- if (unlikely(size > PAGE_SIZE))
+ if (unlikely(size > SLUB_MAX_SIZE))
return kmalloc_large(size, flags);
s = get_slab(size, flags);
{
struct kmem_cache *s;
- if (unlikely(size > PAGE_SIZE))
+ if (unlikely(size > SLUB_MAX_SIZE))
return kmalloc_large_node(size, flags, node);
s = get_slab(size, flags);
*/
return s->size;
}
+EXPORT_SYMBOL(ksize);
void kfree(const void *x)
{
caches++;
}
- for (i = KMALLOC_SHIFT_LOW; i <= PAGE_SHIFT; i++) {
+ for (i = KMALLOC_SHIFT_LOW; i < SLUB_PAGE_SHIFT; i++) {
create_kmalloc_cache(&kmalloc_caches[i],
"kmalloc", 1 << i, GFP_KERNEL);
caches++;
slab_state = UP;
/* Provide the correct kmalloc names now that the caches are up */
- for (i = KMALLOC_SHIFT_LOW; i <= PAGE_SHIFT; i++)
+ for (i = KMALLOC_SHIFT_LOW; i < SLUB_PAGE_SHIFT; i++)
kmalloc_caches[i]. name =
kasprintf(GFP_KERNEL, "kmalloc-%d", 1 << i);
{
struct kmem_cache *s;
- if (unlikely(size > PAGE_SIZE))
+ if (unlikely(size > SLUB_MAX_SIZE))
return kmalloc_large(size, gfpflags);
s = get_slab(size, gfpflags);
{
struct kmem_cache *s;
- if (unlikely(size > PAGE_SIZE))
+ if (unlikely(size > SLUB_MAX_SIZE))
return kmalloc_large_node(size, gfpflags, node);
s = get_slab(size, gfpflags);